* AlternativeRock used to be a less known alternative for the more mainstream sounds at the time of their origin. Nowadays it doesn't make as much sense due to popularity. In fact, it's rare to find a modern rock band without "alternative rock" or "indie rock" on their Wikipedia page.
* Music/NewWave: Thirty-five years and counting.
* Pop: These days if a ballad is released without any rock overtones, it's pop music, regardless of whether it is Popular or not.
* Indie: Even when the band is on a major label, their genre is still short for 'independent'. (However, "indie rock" can also be used to denote a genre, specifically a lo-fi and mellow strain of rock music.)
* Music/{{Emo}}. Originally used to refer to a less violent and confrontational, more personal type of hardcore punk that was emerging in Washington, D.C. in the 80s, the term is derived from "emocore", which itself was short for "emotional hardcore". Today, "emo" is used to describe a type of music that is barely distinguishable from pop-punk, and the fashion style and the association with any mental state other than "constantly happy". It is notable that some modern-day fans who [[OlderThanTheyThink don't know the history of the genre]] mistakenly believe it's short for simply "emotional".
* NewAgeMusic is more of a marketing term. Very few artists labelled as "New Age" actually have any connection to "NewAge" religions. Some of them even reject the label and propose replacements like "Folk Ambient" or "Instrumental Chillout".
* Some Chilean bands had one more member than the title suggest, because the last member joined shortly after the original inception and [[MyFriendsAndZoidberg the rest weren't too keen to change it]]:
** 'Los Tres' (The three ones) were 4 members.
** 'Los cuatro cuartos' (The four quarters) are 5 members.
** 'Banana 5' are 6 members
* An interesting example comes in the form of punk band Dillinger Four. Their name was originally The Young Dillingers after a name they saw in a record sleeve under the Thank You list. When it turned out to be the name of a local gang they changed it Dillinger Four. At the time of naming, they only had three members so it was just a silly joke. Then they added a second guitarist and the joke just sort of became a normal name.
* "Unchained Melody" was named after the movie it originally appeared in, ''[[http://en.wikipedia.org/wiki/Unchained_(film) Unchained]]''. The movie is largely forgotten, but thanks to covers and use in other movies (most notably ''Film/{{Ghost}}''), the melody is still popular.
* The "classic" Emo[[note]]Which is actually a style of post-hardcore music that bears virtually nothing in common with the mainstream label, see the entry above[[/note]] band Sleepytime Trio started out as a trio, but added a fourth member not too long after formation, and were a four-piece for almost their entire existence, yet they kept the name anyway.
* Underworld's famous [[http://www.youtube.com/watch?v=TlLWFa1b1Bc "Born Slippy.NUXX"]] is a [[InNameOnly completely different]] tune from the obscure [[http://www.youtube.com/watch?v=3Fr1x-N3-k8 original song "Born Slippy"]]. It only got named so because it was on the same EP. Thus, many people mistake it to be the original, especially remixers of the song who only credit is as "Born Slippy".
* This might be the best way to explain the stage name of singer P!nk. When she first started, she actually had [[http://images.contactmusic.com/videoimages/sbmg/pnk-there-you-go.jpg pink hair]]. However, as time has gone by, she has changed it to blonde. Although, she says her stage name came from Mr. Pink in ''Film/ReservoirDogs'', so it's possible that the hair was only dyed pink to explain the name, instead of the name coming from her hair.
* Music/HeavyMetal changed drastically after Music/VanHalen and the NewWaveOfBritishHeavyMetal. Early 70's bands such as Music/UriahHeep, Mountain, and Music/AliceCooper were considered to be Music/HeavyMetal bands, but the term has changed to mean something different than what these bands sounded like. Today they're usually counted as HardRock.
** For that matter, the same thing happened to PowerMetal (the original name for speed metal, now the name for fantasy metal) and ThrashMetal (which used to mean progressive speed metal with clean vocals whereas the modern equivalent is closer to 80s death metal).
* Occasionally, a musician from a band that has broken up will join a new band, and that band will use the old band's name to take advantage of the name recognition and/or record contract. Happened notably with Music/{{Scorpions}} in the early 1970s.
* Pop insert-genre-here ends up sounding more pop than that genre. Fast.
* Much mainstream "CountryMusic" is contemporary pop or rock with a steel guitar and a singer with a twang. There's still a few successful artists that adhere to a more traditional sound, though.
* [[http://www.omggband.com/omgg.cfm OMGG]], a bluegrass band particularly notable for the fact that its bandmembers have all been playing since they were quite young - the name stands for "Obviously Minor Guys and a Girl". The oldest already isn't particularly "obviously" minor, and soon enough none of them will be.
* Few music "albums" have actually been a book of discs in sleeves ever since the LP format made it convenient to put ~50 minutes of music on just one. And that was several decades ago.
** Similarly, many box sets come in hardback book form with CD holders, rather than in a box.
** "Albums" in the boxed sense were an this trope when they were first introduced in the late 1930s. The first record "albums" were books with sleeves, holed in the middle, that records could be stored in and leafed through like photo albums (hence the name). They were introduced around 1909 or so; record companies didn't catch on that they would make multi-song collections a viable release at first.
* The mid-20th century displacement of 78s by long-playing 33 and 45 rpm records led to two terms becoming artifactual:
** The terms single, EP, and LP were introduced with the format ... in fact, all the latter had [[https://en.wikipedia.org/wiki/File:LPlogo.svg a special logo]] on the cover that gave the format its name. They are still used today in describing the length of a recording despite most music coming out on the same format (usually CD or MP3 download) regardless of length.
*** In Germany, the term 'maxi CD' is often used to refer to a CD single. It was originally designed to refer to CD singles which had more than two tracks, but came to refer to all of them.
** The term "vinyl" was used at first for these new formats, to distinguish them from the older 78s, which were pressed on shellac (which was used to refer to them). Since vinyl more than made up for its greater propensity to break and warp with far less surface noise, by the late 1950s in the U.S. at least it had completely taken over. "Vinyl" nonetheless continues to be used to refer to all phonographic records, and while it's accurate since that's what they're all made of, it references a distinction that stopped needing to be made a long time ago.
* Country music duo Baillie & the Boys had only one "boy" in it for several years following the departure of Alan [=LeBoeuf=] in 1988, leaving it as a husband-and-wife duo of Kathie Baillie and Michael Bonagura. They later signed on Roger [=McVay=] as an unofficial third member, but [=LeBoeuf=] returned in 1998.
* Subverted by the Thompson Twins. A trio at the height of their popularity (they had anywhere from four to six members in their early years), they became a duo after bassist Joe Leeway left.
* Secret Chiefs 3 started out as a trio, but kept the "3" in the name once they became [[IAmTheBand Trey Spruance and a usually much larger, revolving door lineup]].
* {{Christian|Rock}} {{Ska}} band FiveIronFrenzy's named their second album ''Our Newest Album Ever''. And it [[ExactlyWhatItSaysOnTheTin technically was]]... until they released ''Quantity is Job #1'' the following year.
* Japanese PowerMetal band Music/{{Versailles}} found out when they tried to perform in the US that there was [[NamesTheSame already an American band named Versailles]] and changed their name to Versailles Philharmonic Quintet--a name which became awkwardly inappropriate after bassist Jasmine You's [[AuthorExistenceFailure sudden death]] in 2009. While promoting their second album, they [[http://i46.tinypic.com/25umkg1.jpg continued to use]] the Versailles Philharmonic Quintet name despite only having four members. (The name became accurate again when support bassist Masashi joined the band proper in late 2010.)
* The "TVT" in now-defunct record label TVT Records technically stands for "[=TeeVee=] Toons": The label's first release was ''Television's Greatest Hits'', a compilation of TV {{theme song}}s. Though TVT kept releasing the occasional collection of tv themes or commercial jingles throughout it's run, it became better known for music well outside that niche, signing successful acts such as NineInchNails and LilJon.
* GRIMMS were a pop/comedy band formed in 1971 by members of the Scaffold, the Bonzo Dog Doo Dah Band, and the Liverpool Scene; the band's name was formed from the initials of original core band members John Gorman, Andy Roberts, Neil Innes, Mike [=McGear=], Roger [=McGough=], and Vivian Stanshall. However, Stanshall left the band in 1972 and [=McGear=] followed a year later, so that only four of the members referred to in the band name were left in the band by their breakup in 1976; moreover, after their first two performances, the band expanded to include many additional members not referenced in their name.[[note]] Nine, to be exact, though not all at once. Adrian Henri, Brian Patten, Michael Giles, John Megginson, and George Money contributed to the first album, ''Grimms''; Henri, Giles, and Money left in 1973 and were replaced by David Richards, Peter Halsall, and Gerry Conway for the second album, ''Rockin' Duck'', while Patten left in 1974 and Halsall and Conway left in 1975 to be replaced by Timmy Donnell for the third album, ''Sleepers''.[[/note]]
* The Air from J.S. Bach's Orchestral Suite No.3 in D major is commonly known as "Air on the G-String" after a once-popular arrangement created by 19th-century violinist August Wilhelmj, even though it is now more usually played in its original arrangement.[[note]] As the melody only covers a range of a minor tenth (A4-C6), it can be played quite easily on a single string; the original version can theoretically be performed entirely on the A string, but Wilhelmj transposed the piece down by a major ninth so that it could be played on the G string.[[/note]]
* Pretty much any band of youngsters identified as "boys", "girls" (maybe less so) or "kids" (i.e. BackstreetBoys, TheBeachBoys, NewKidsOnTheBlock) where the members have grown up automatically becomes this. It happened to Music/SonicYouth long before their hiatus and will apply to Youth Group (whose biggest hit to date is a cover of Alphaville's "Forever Young") if they ever emerge from their own hiatus.
* Music/SnoopDogg's stage name derives from Snoopy, a cartoon dog. When he changed his name to Snoop Lion, the "Snoop" part became an artifact.
* The {{Silverchair}} BSide "Punk Song #2". They originally used "Punk Song #1" and "Punk Song #3" as titles for other songs written around the same time, but only "Punk Song #2" ended up keeping its WorkingTitle: "Punk Song #1" became "Lie To Me" and "Punk Song #3" became "Satin Sheets".
* The Mandarins were founded in 1963 as an all-Asian drum and bugle corps. Today, corps membership comes from all ethnic groups.
* DuranDuran's 1983 followup to their breakthrough smash album ''Rio'' was called ''Seven and the Ragged Tiger'', after a storyline that Simon [=LeBon=] had originally envisioned going through all the songs about a group of rebels challenging a repressive state. During the album's [[TroubledProduction/{{Music}} difficult production history]], that idea was dropped in favor of just getting the record finished on time. Other than the title, it survives only in the concept for the "New Moon on Monday" video (more evident in the longer version).
* Walter Becker's 11 Tracks Of Whack album actually has 12 tracks, but Little Kawai was added at the last minute after the title had been decided. In Japan, the album features an additional track Medical Science, giving 13 tracks, yet keeps the original title.
* Hamilton, Joe Frank & Reynolds was a soft rock trio composed of Dan Hamilton, Joe Frank Carollo, and Tommy Reynolds. The group continued to use its original name even after Reynolds was replacd by Alan Dennison.
* Fifty-something soft-rock duo George Merrill and Shannon Rubicam are still mostly known as Music/BoyMeetsGirl.
* Music/GeorgeStrait's ''50 Number Ones'' contained all 50 of his #1 hits to date, plus the new song "I Hate Everything" as a 51st track. Said song was released as a single... and it went to #1 as well, thus invalidating the album's title in mere months!
* Music/{{Blondie}} was so named because there were two other blonde singers present for their early rehearsals, both of whom left before they ever played live or recorded anything.
* GunsNRoses is named after Tracii Guns and Axl Rose. [[ThePeteBest The former]] was fired by [[IAmTheBand the latter]] after missing rehearsals, being replaced by Slash.
* The "flanging" sound effect, used on [[https://en.wikipedia.org/wiki/List_of_recordings_with_a_prominent_flanging_effect many songs]], gets its name from being originally produced by pressing down on the flange of a tape reel. Since the late 1970s it's been produced purely electronically.
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